Red Stains Dyes and Indicators

Phenol Red, Sodium Salt (Certified ACS), Fisher Chemical

Chemical Name or Material: Phenol Red, Sodium Salt CAS: 34487-61-1 Purity Grade: Certified ACS Grade Molecular Formula: C19H13NaO5S Linear Formula: C6H4SO2OC(C6H4-4-OH)(C6H4-4-ONa) Formula Weight: 376.37 MDL Number: MFCD00066901 Synonym: Phenolsulfonephthalein Sodium Salt

Sudan Red 7B, ACROS Organics™ Available on GSA/VA Contract for Federal Government customers only.

Chemical Name or Material: Sudan red 7B CAS: 6368-72-5 Molecular Formula: C24H21N5 Formula Weight: 379.45 MDL Number: MFCD00003904 Synonym: C.I. 26050

Neutral Red (Certified Biological Stain), Fisher Chemical

Chemical Name or Material: Neutral Red CAS: 553-24-2 Purity Grade: Certified Biological Stain Molecular Formula: C15H17ClN4 Formula Weight: 288.78 MDL Number: MFCD00012651 Synonym: Basic Red 5

Methyl Red hydrochloride, ACS reagent, ACROS Organics™

Chemical Name or Material: Methyl Red hydrochloride CAS: 63451-28-5 Purity Grade: ACS Reagent Grade Molecular Formula: C15H15N3O2·HCl Linear Formula: (CH3)2NC6H4NNC6H4COOH·HCl Formula Weight: 305.76 MDL Number: MFCD00012614 Synonym: 2-[4-(Dimethylamino)phenylazo]benzoic acid hydrochloride

Alfa Aesar™ Cresol Red sodium salt

Chemical Name or Material: Cresol Red sodium salt CAS: 62625-29-0 Molecular Formula: C21H17NaO5S Formula Weight: 404.42 MDL Number: MFCD00001618 Synonym: o-Cresolsulfonephthalein sodium salt

Alfa Aesar™ Methyl Red

Chemical Name or Material: Methyl Red CAS: 493-52-7 Molecular Formula: C15H15N3O2 Formula Weight: 269.3 MDL Number: MFCD00002425 Beilstein: 750102 Merck Index: 14,6119 Synonym: C.I. 13020

Alfa Aesar™ Ethyl Red

Chemical Name or Material: Ethyl Red CAS: 76058-33-8 Molecular Formula: C17H19N3O2 Formula Weight: 297.36 MDL Number: MFCD00002427 Beilstein: 3366056 Synonym: 2-(4-Diethylaminophenylazo)benzoic acid

Phenol Red Indicator Solution, 0.02% w/v Products for Science Education

Chemical Name or Material: Phenol Red Indicator Solution, 0.02% w/v CAS: 34487-61-1 Assay Percent Range: 97 to 100% Linear Formula: C19H13NaO5S Formula Weight: 376.36 Synonym: Phenolsulfonephthalein Sodium Salt

Phenol Red, ACROS Organics™

Chemical Name or Material: Phenol Red Name Note: Pure CAS: 143-74-8 Purity Grade: ACS Reagent Grade Molecular Formula: C19H14O5S Formula Weight: 354.38 MDL Number: MFCD00003552 Synonym: Phenolsulfonephthalein

Nuclear Fast Red, 94%, pure, ACROS Organics™

Chemical Name or Material: Nuclear Fast Red CAS: 6409-77-4 CAS Min %: 92.0 CAS Max %: 100.0 Purity Grade: Pure Assay Percent Range: 94% Molecular Formula: C14H8NNaO7S Formula Weight: 357.26 MDL Number: MFCD00078493 Synonym: C.I. 60760

Alfa Aesar™ Oil Red O

Chemical Name or Material: Oil Red O CAS: 1320-06-5 Molecular Formula: C26H24N4O Formula Weight: 408.51 MDL Number: MFCD00003898 Beilstein: 3491382 Synonym: C.I. 26125; Solvent Red 27

Alfa Aesar™ Methyl Red sodium salt, ACS

Chemical Name or Material: Methyl Red sodium salt CAS: 845-10-3 Purity Grade: ACS Grade Formula Weight: 291.29 MDL Number: MFCD00002426 Beilstein: 4065488 Synonym: 2-[4-(Dimethylamino)phenyl]azobenzoic acid sodium salt

Alfa Aesar™ Phenol Red, ACS

Chemical Name or Material: Phenol Red CAS: 143-74-8 Purity Grade: ACS Grade Formula Weight: 354.38 MDL Number: MFCD00003552 Beilstein: 326470 Merck Index: 14,7247 Synonym: Phenolsulfonphthalein; Phenylsulfonephthalein

Alizarin Red S sodium salt, 1% w/v aq. sol., Alfa Aesar™

Chemical Name or Material: Alizarin Red S sodium salt CAS: 130-22-3 Physical Form: Liquid Molecular Formula: C14H7O7SNa MDL Number: MFCD00013049

Eosin B (Certified Biological Stain), Fisher Chemical

Chemical Name or Material: Eosin B CAS: 548-24-3 Purity Grade: Certified Biological Stain Molecular Formula: C20H6Br2N2O9Na2 Formula Weight: 624.09 MDL Number: MFCD00005041 Synonym: Acid Red 91

Nile Red 99%, ACROS Organics™

Chemical Name or Material: Nile Red Name Note: 99% CAS: 7385-67-3 CAS Min %: 98.5 CAS Max %: 100.0 Purity Grade: Extra Pure Assay Percent Range: 99% Molecular Formula: C20H18N2O2 Formula Weight: 318.38 MDL Number: MFCD00011639 Synonym: Nile blue A oxazone

Alfa Aesar™ Brilliant Crocein

Chemical Name or Material: Brilliant Crocein CAS: 5413-75-2 Molecular Formula: C22H14N4Na2O7S2 Formula Weight: 556.49 MDL Number: MFCD00003907 Synonym: C.I. 27290; Crocein Scarlet MOO

Eosin Y, pure, Indicator grade, ACROS Organics™

Chemical Name or Material: Eosin Y CAS: 17372-87-1 Purity Grade: Pure Molecular Formula: C20H6Br4Na2O5 Formula Weight: 691.85 MDL Number: MFCD00005040 Synonym: 2';, 4';, 5';

Para Red, Dye Content ca 95%, ACROS Organics™

Chemical Name or Material: Para Red CAS: 1647520 Purity Grade: Extra Pure Molecular Formula: C16H11N3O3 Formula Weight: 293.27 MDL Number: MFCD00003908 Synonym: 1-(4-Nitrophenylazo)-2-naphthol

Cresol Red, Sodium Salt Products for Science Education

Chemical Name or Material: Cresol Red, Sodium Salt CAS: 62625-29-0 Physical Form: Solid Molecular Formula: C21H17O5S Linear Formula: C21H17NaO5S Formula Weight: 404.4 Synonym: O-Cresolsulfonephthalein

Alfa Aesar™ Sudan III

Chemical Name or Material: Sudan III CAS: 85-86-9 Molecular Formula: C22H16N4O Formula Weight: 352.4 MDL Number: MFCD00003905 Beilstein: 931185 Merck Index: 14,8884 Synonym: C.I. 26100; Solvent Red 23

Neutral Red, pure, high purity biological stain, ACROS Organics™

Chemical Name or Material: Neutral red Name Note: High purity biological stain CAS: 553-24-2 Purity Grade: Extra Pure Molecular Formula: C15H17ClN4 Formula Weight: 288.77 MDL Number: MFCD00012651 Synonym: 3-Amino-7-dimethylamino-2-methylphenazine hydrochloride

Alfa Aesar™ Sudan III (chromatographic standard)

Chemical Name or Material: Sudan III (chromatographic standard) CAS: 85-86-9 Molecular Formula: C22H16N4O Formula Weight: 352.4 MDL Number: MFCD00003905 Beilstein: 931185 Merck Index: 14,8884 Synonym: C.I. 26100; Solvent Red 23

Cresol Red, Water Soluble, Indicator Grade, ACROS Organics™

Chemical Name or Material: Cresol Red, sodium salt CAS: 62625-29-0 Purity Grade: Pure Molecular Formula: C21H17NaO5S Formula Weight: 404.4 MDL Number: MFCD00001618

Quinaldine red, pure, ACROS Organics™

Chemical Name or Material: Quinaldine red Name Note: Pure CAS: 117-92-0 Purity Grade: Pure Molecular Formula: C21H23IN2 Formula Weight: 430.32 MDL Number: MFCD00011968 Synonym: 2-[4-(Dimethylamino)styryl]-1-ethylquinolinium iodide

Alfa Aesar™ Erie Garnet, ca. 80% dye content

Chemical Name or Material: Erie Garnet CAS: 2429-70-1 Name Note: ≈80% dye content Molecular Formula: C32H21N5O7S2Na2 Formula Weight: 697.65 MDL Number: MFCD00046442 Synonym: C.I. 22145; Congo Corinth

Phenol Red sodium salt, ACS reagent, ACROS Organics™

Chemical Name or Material: Phenol Red sodium salt CAS: 34487-61-1 Purity Grade: ACS Reagent Grade Molecular Formula: C19H13NaO5S Formula Weight: 376.35 MDL Number: MFCD00066901

Alfa Aesar™ Biebrich Scarlet sodium salt

Chemical Name or Material: Biebrich Scarlet sodium salt CAS: 4196-99-0 Molecular Formula: C22H14N4Na2O7S2 Formula Weight: 556.49 MDL Number: MFCD00003891 Beilstein: 3883900 Synonym: C.I. 26905; Acid Red 66

Methyl Red, pure, indicator, ACROS Organics™

Chemical Name or Material: Methyl Red CAS: 493-52-7 Purity Grade: Pure Molecular Formula: C15H15N3O2 Linear Formula: (CH3)2NC6H4N=NC6H4CO2H Formula Weight: 269.3 Synonym: 2-[4-(Dimethylamino)phenylazo]benzoic acid

Alfa Aesar™ Cresol Red sodium salt, 0.04% w/v aq. soln.

Chemical Name or Material: Cresol Red sodium salt CAS: 62625-29-0 Molecular Formula: C21H17O5S Formula Weight: 404.42 MDL Number: MFCD00001618

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